More recently he has made investments in music site Spotify, crowdsourced car-navigation aid Waze and waterproofing tech outfit HzO.

FORBES: Li Ka-shing's Midas Touch

Where Liquipel sells to consumers, companies such HzO and P2i are focusing on incorporating their waterproofing technology in products before they're shipped out.

CNN: Waterproof phones and tablets make a splash

While P2i describes its invisible "hydrophobic layer" as covering the exterior and interior of a product, HzO touts what it calls "WaterBlock" technology, which is applied to the internal circuitry of a device to protect it from moisture.

CNN: Waterproof phones and tablets make a splash

The liquid-repellent coating developed by P2i can be found on the Alcatel One Touch 997, whereas HzO just announced a partnership with Atelier Haute Communication to apply its waterproofing technology to a forthcoming limited edition TAG Heuer Android phone.

CNN: Waterproof phones and tablets make a splash